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W. A. WHITE & J. McDONALD- LIQUID FUEL BURNER. APPLICATION FILED APR.19, 1915.

11, 1 94, 1 O6 Patented Aug. 8, 1916.

Witt zoom:

WILLIAM A. WHITE AND JAMES MODONATJD, OF NEW YORK, N. Y.

maurr-runnnunnnn specification of Letters Patent.

Patented Aug. 3, 19316.

Application fled April 19, 1915. Serial No. 22,229.

To all whom it may concern:

' Be it known that we, WILLIAM A. WHITE,

a, citizen of the United States, and JAMES ciently consuming heavyhydrocarbons like fuel oil.

Our improved burner is based upon the principle of the continual supplyof a film of liquid fuel upon a horizontal support, laterally confined,and burnin propagation of the flame provides complete combustion of thefuel and air mixture.

As an example of the practical carrying out of our invention we mayemploy a circular plate, horizontally disposed, having a centre orificeforthe uptake of air, and having its upper surface bounded withupstanding, concentric walls about its inner and outer perimeters. Saidplate may support a layer or film of liquid fuel, entered thereon asthrough an aperture in said plate, and supplied thereto as by gravityfeed, the fuel being preferably localized upon the plate near thecentral orifice therein by one or a series of annular, shallowdepressions or grooves thereon; a fuel overflow being provided as by anaperture throughthe outer concentric wall to prevent the fuel head fromrising unduly.

Extending over the air uptake orifice is a mushroom or disk valve, whichalso lies in the path of the ascending flame, said valve having means ofvertical adjustment relatively to the burner plate, whereby the-angle ofdeflection and speed of air entering through the uptake may beregulated, and the intensity of the flame propagation duly governed.

The burner aforesaid may be housed within a furnace of any suitablecharacter, either for supplying heated air through the usual channels,or for heating water, or generating steam, the methods -of installationand under the influ-- en'ce of a central draft 0 air, which is deflectedand regulated to a point where self arrangement being only such as fallwithin the province of mechanical expediency.

Other features and advantages of our invention will be hereinafterdescribed.

In the drawing: Figure 1 is a vertical sectio na1 view of an apparatusembodying the principles of our invention, and Fig. 2 is a section onthe line 2-2 of Fig. 1.

The structure illustrated in the drawing presents a simple form ofapparatus involving elements arranged for the eificient combustion ofliquid fuel in the manner established by our improvement, in whichstructure the burner is seen to be composed of a horizontal plate 1 ofcircular or disk form,

with an outer retaining wall 2 extending upwardly from the periphery ofsaid plate, and around said plate; together with a central orifice,occupled by a draft tube 3, whose upper portion protrudes through plate1, there forming an inner, concentric wall 4. One or a number ofconcentric grooves or shallow depressions 5 are provided in the uppersurface of plate 1, near the inner wall 4, the innermost of said groovesbeing in communication, as through the plate, with a feed pipe 6, whichis extended upwardly, outside the burner, and may have a reception cup7, with a filter 8, which may belocated in position to receive liquidfuel as from a source of supply 9, through a faucet or valve 10. a

' A mushroom or disk valve 11 lies over the draft tube 3, also extendingover the grooves 5, and is mounted upon a stem 12, which is guided forvertical movement by bearings 13 formed in spiders 14: supported in thedraft tube 3, said stem having means of ad- 'justment such .as a rack15, with which is engaged an actuating pinion 16.

. The burner aforesaid may be housed within a furnace of any suitablecharacter for its practice, such housing being here onlydiagrammatically indicated by the dotted lines 17.

In the operation of our improved burner for liquid fuel, fuel isadmitted to a groove 5 through thepipe 6, as by opening the valve 10,and is ignited in said groove. Air to support combustion of the fuelenters through the tube 3 under the natural draft of the furnace inWhich the burner is installed, this air striking against the undersurface of thevalve 11, and being deflected thereby, more or lessacutely, according to the vertical position of adjustment of said valverelatively to plate 1, WhlCll ad ustment also serves to vary the airspeed and volume, and thus to regulate the flame propagation to thepoint of complete combustion.

The fuel feed is regulated at the faucet or valve 10, whereby a constantgravity flow may be provided in one or more of the grooves 5, theoverflow from one groove entering the next adjacent groove, and so on.Should an excess of fuel pass from the grooves 5 on to the surroundingportion of the plate 1, any unburned excess may pass off through a wastepipe 18, from whence it may be returned to the source of supply orotherwise disposed of.

Variations may be resorted to within the spirit and scope of our saidinvention, and parts thereof used without others.

We. claim 1. A liquid fuel burner comprising a plate having a centraldraft orifice, and a depression in the inner portion of said plate tolocalize the fuel thereon, said plate also having an extended fuelsupporting surface, and a valve in the path of the burning products.

2. A liquid fuel burner comprising a plate having a central draftorifice, and a depression in the inner portion of said plate to localizethe fuel thereon, said plate also having an extended fuel supportingsurface, in combination with fuel feed means, and a valve in the path ofthe burning products.

3. A liquid fuel burner comprising aplate having a central draftorifice, and a depression in the inner portion of said plate to localizethe fuel thereon, said plate also having an extended fuel supportingsurface, in combination with an adjustable valve in the path of theburning products.

4. A liquid fuel burner comprising 'a plate having a central draftorifice, and a depression in the inner portion of said plate to localizethe fuel thereon, said plate also having an extended fuel supportingsurface, in combination with regulating fuel feed means, and anadjustable air admission valve in the path of the burning products;

'5. A liquid fuel burner comprising a horizontally disposed plate, adraft tube extending centrally therethrough, a concentric fuel receivinggroove in the inner portion of said plate about said draft tube, tolocalize the fuel upon the plate, and to form a restricted flame zonerelatively to the area of said plate, a gravity fuel feed incommunication with said groove, and means for regulating the admixtureof air to support combustion of the fuel.

6. A'liquid fuel burner comprising a horizontally disposed plate, adraft tube com municating centrally therewith, means for supplying fuelto said plate, an annular depression upon the inward portion of theplateto localize the fuel thereon and form a restricted flame zonerelatively to the area of said plate, and means for deflecting the airentered through said draft tube to mix with the burning fuel.

7 7. A liquid fuel burner comprising a horizontally disposed plate, adraft tube communicating centrally therewith, means for supplying fuelto said plate, inner and outer, concentric, fuel retaining walls forsaid plate, an annular depression upon the inward portion of the plateto localize the fuel thereon and form a restricted flame zone relativelyto the area of said plate, an overflow outlet, and means for deflectingthe air entered-through said draft tube to mix with the burning fuel.

8. A liquid fuel burner comprising a horizontally disposed plate, adraft tube communicating centrally therewith, an annular depression uponthe inward portion of the plate to localize the fuel thereon and form arestricted flame zone relatively to the area of said plate, and an airdeflecting valve extending over said draft tube and flame zone.

9. A liquid fuel burner comprising a horizontally disposed plate, adraft tube communicating centrally therewith, an annular depression forlocalizing fuel over a central, restricted, annular portion of saidplate, to form a flame zone, a disk valve extending over said draft tubeand flame zone to deflect air, rising through said draft tube,downwardly into said flame zone, and means for adjusting said disk valvevertically to regulate the air volume and its speed of travel.

10. The combination with a furnace of liquid fuel burner thereforcomprising a fuel supporting plate having a central draft orifice andinner and outer, concentric, fuel confining walls, a depression in theinner portion of said plate to localize the flame zone around saidorifice and retard the fuel from spreading over the outward portion ofsaid plate, fuel feed means for said depression, and a'disk valve todeflect air of combustion into said flame zone.

11. The combination, witha furnace, of a liquid fuel burner therefor,comprising a horizontally disposed plate, an outer fuel retaining walltherefor, said wall having an overflow outlet, a central draft tubeprotruding upwardly through said plate, to form an inner fuel retainingWall, an annular fuel localizing depression in the surface of saidplate, near said inner wall, means communicating fuel to saiddepression, and a disk valve extending over said draft tube anddepression.

12. The combination, with a furnace, of a liquid fuel burner therefor,comprising a horizontally disposed plate, an outer fuel retaining walltherefor, said wall having an overflow outlet, a central draft tube pro-I truding upwardly through said plate, to

form an inner fuel retaining wall, an annular fuel localizing depressionin the surface of said plate, near said inner wall, means communicatingfuel to said depression, and a disk valve extending over said draft tubeand depression, the under surface of said disk valve being concaved, todeflect the risim air downwardly into the flame 13. A liquid fuel burnercoinprising 'a horizontally disposed plate to support an even film offuel, a confining wall having an F. W. BARKER, PROSPER- BUANELLI.

